When did she die?
If Liesl was 90 when she died, she must have died in the near future but not at the present time.
I thought she was about 9 in 1938 when her mother went away so that would have made her about 85 when the movie came out.
Hmm...that's most curious. You could be right. I suspect some artistic liberty was taken with her age. If she was 90 when the movie came out at 2013, that'd make her approximately 14-15 years of age.
The actress herself at time of filming and/or release was around 13 years of age.
She looks younger than that though, but given the increasing scarcity of food, and lack of nutrition at that time in Germany, that may account for her smaller size and more youthful appearance. I wondered about it too. Good question!
Well, when the movie started she was supposed to be 9 in about 1938. The actress was older because she played the same girl over a period of several years. She must have been around 16 when the war ended.
But to be 90 in 2013 she must have been born in 1923 which would have made her already 15 in 1938 and an adult when Germany was being bombed but she was still clearly a young teen.